Learn the distinctions between simple and stratified random sampling. Understand how researchers use these methods to ...
where is the true probability of observing the jth response level in the ith population. The product multinomial distribution is simply the product of two or more individual multinomial distributions ...
Suppose that the sample of students described in the previous section was actually selected using stratified random sampling. In stratified sampling, the study population is divided into ...
Sampling allows archaeologists to draw conclusions about a site or region using only a fraction of the area. Because ...